Buffing mechanism for cars.



No. 7|6,553. Patented Dec. 23, I902.

W. KELSO.

BUFFING MECHANISM FOR CABS.

(Application filed May 27, 1901. Renewed Nov. 13, 1902.)

(No Model.)

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IITTED STATES PATENT OFFICE.

WVILLIAM KELSO, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE MCCONIVAY 8cTORLEY COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATIONOFPENNSYLVANIA.

BUFFING MECHANISM FOR CARS.

SEECIFIGATION forming part of Letters Patent N 0. 716,553, datedDecember 23, 1902.

Application filed May 2'7, 190).. Renewed November 13, 1902. Serial No.131,266. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM KELso, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have in vented or discovered certain new and usefulImprovements in Buffing Mechanism for Cars, of which improvements thefollowing is a specification.

The invention described herein relates to certain improvements inbuffing mechanism for cars, and has for its object an arrangement ofelements whereby frictional and spring resistance is presented to theinward movement of the coupler-head.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings, forming a part of this specification,Figure 1 is a sectional plan view illustrating my improvement and themanner of applying it to a car; and Fig. 2 is a sectional elevation on aplane indicated by the line II II, Fig. 1.

In the practice of my invention the coupler-head 1, with its stem 2, isconstructed and secured to the car in the usual and any suitable manner,with the usual or any suitable construction and arrangement of draft andbuffing springs and connections. (Not shown.) Sockets 3 are secured tothe end sill 4 at angles to the axis of the coupler. It is preferredthat these sockets should be arranged under the end sills, so that thesockets will bear against and be supported laterally by the ends of thedraft-sills 4, which are cut off, so that the outer walls of the socketswill be flush, or nearly so, with the outer faces of the end sills.Movable blocks 5 are arranged within the sockets and hear at their outerends against-springs 6, interposed between the end walls of the socketsand the movable blocks 5. The inner ends of the blocks are beveled orinclined to correspond with wedge faces carried by the coupler. It ispreferred to form the wedge faces on blocks 7 interposed between thestem of the coupler and the inclined inner ends of the blocks 5 andbearing against the stem and the rear wall of the coupler-head 1. Vhenthe blocks 7 are formed independent of the coupler, they are held inposition in the sockets by means of pins 8, passing through slots 9 inthe blocks and having their ends secured in upper and lower walls of thesockets 3. By the action of the springs and the inclined faces of theblocks 5 and 7 the blocks 7 are forced out against the coupler headexcept when the latter is subjected to a pull. Nhen the coupler isforced inwardly, the wedge faces carried thereby will slide transverselyoff the inclined ends of the blocks 5, forcing them outwardly againstthe springs 6. The inward movement of the coupler will be resisted bythe springs, and its momentum will be taken up in overcoming thefriction between meeting faces of the blocks 5 and 7 and the resistanceof the springs.

It is characteristic of my invention that the bufling mechanism can beapplied to any standard form of coupling mechanism without any change orreconstruction thereof. The application of the buffing mechanism to carsnow in use involves only the cutting away of short sections of thedraft-sills and the bolting of the sockets to the end sills. It will beobserved that the arrangement of the buffing mechanism is such that thestrains and shocks are transmitted directly from the coupler-head to thebuffing mechanism, so that the neck portion at the junction of the stemand head is not liable to injury.

I claim herein as my invention- 1.v The combination of a coupler,springs arranged on opposite sides of the coupler adjacent to its headand at an angle to its axis, wedgeblocks arranged in the rear of thecoupler-head and adapted to be shifted by the head when forced inwardly,and blocks interposed between the springs and the wedgeblocks,substantially as set forth.

2. A buffing mechanism for cars having in combination a socket, a blockmovably mounted in the socket and having an inclined end, a springinterposed between the block and a stationary wall or abutment, and awedge movably mounted in the socket and adapted to be shiftedtransversely of the block by the inward movement of the coupler-head,substantially as set forth.

3. The combination of a coupler, springs arranged on opposite sides ofthe coupler and adjacent to the head of the latter, wedgel wedge-blocksbearing against the rear wall blocks interposed between the coupler andof the coupler-head and blocks interposed -the springs and bearingagainst the rear Wall between the springs and the wedge-blocks,

of the coupler-head and adapted to be shifted substantially as setforth.

5 by the coupler-head in a direction at an In testimony whereof I havehereunto set 15 angle to the axes of the springs to compress my hand.

the latter, substantially as set forth. WILLIAM KELSO.

4. The combination of a coupler, springs Witnesses: arranged on oppositesides of the coupler DARWIN S. WOLOO'I'T,

lo and supported by the end sill of the car, F. E. GAITHER.

